linux

linux

Setting up keepassxc with yubikey

I use keepassxc to store my passwords. Up until now for my setup I have been using Password + Keyfile as the database credentials, where keyfile has been mostly used as a salt rather than an actual secrets. I store a backup of this keyfile in various online accounts. Because of this I've never been entirely comfortable storing the passwords anywhere online, as it would only require cracking my password. Adding the yubikey secret to the credentials should add an offline factor that will be very difficult to compromise.

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infosec

Revoking a PGP Key from MIT's Key Server

Instructions on how to revoke your public PGP key from MIT's Key Server.

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linux

Yubikey OpenPGP Setup for SSH and Commit Signing

Some disorganized notes on how I set up my yubikey for SSH auth and git commit signing.

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linux

Setting up RAID1 with mdadm

How I setup RAID1 on a basic USB sata docking station.

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linux

Setting up Thinkpad dockd

I finally bought myself a dock for the thinkpad I use as my main computer. After using the new dock for some time I noticed that the screen would be stuck displaying black after leaving the system locked for a longer time. Looking around I found dockd which fixes that problem and automates the switching of display layouts.

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linux

Setting up Brother DS620 on Linux

I got myself a scanner so that I could scan some paperwork. Payslips, tax declarations. I went for the Brother DS620 because of it's small size and the fact that it had linux drivers available. Here's how I set it up on Ubuntu and a small cheatsheet for the future.

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sysadmin

Replacing Cronjobs with Systemd Timers

How to create systemd timers, that are in my opinion better than cronjobs.

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linux

Reverting to a Previous Kernel

Short how-to revert a linux kernel on Ubuntu 18.04

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sysadmin

Recovering a RAID 1 Drive in Linux

The steps I took to mount a RAID1 drive in Linux.

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linux

PulseAudio cheatsheet

PulseAudio seems to be the default sound system for many linux distributions, including mine. I often have to look up the commands when I want to e.g. change output ot a different device, such as my big "TV"-screen. Pulse seems to be a very powerful system in terms of configurability, I won't cover much of it. My interactions with Pulse is only as a desktop user.

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